2216205650 has 36 divisors (see below), whose sum is σ = 4236693678. Its totient is φ = 862496640.

The previous prime is 2216205637. The next prime is 2216205679. The reversal of 2216205650 is 565026122.

It can be written as a sum of positive squares in 9 ways, for example, as 1100846041 + 1115359609 = 33179^2 + 33397^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52262 + ... + 84638.

Almost surely, 2^2216205650 is an apocalyptic number.

2216205650 is a deficient number, since it is larger than the sum of its proper divisors (2020488028).

2216205650 is a wasteful number, since it uses less digits than its factorization.

2216205650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32463 (or 32421 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2216205650 is about 47076.5934409022. The cubic root of 2216205650 is about 1303.7771117315. Note that the first 3 decimals are identical.

The spelling of 2216205650 in words is "two billion, two hundred sixteen million, two hundred five thousand, six hundred fifty".